Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. An image transfer system having an image transmitter and an image receiver, wherein the image transmitter includes a communicator, an imager, a synchronization signal generation function, and one or more processors, wherein the image receiver includes a communicator, a monitor, a synchronization signal generation function, and one or more processors, wherein the synchronization signal generation function of the image transmitter is configured to generate an imaging synchronization signal, wherein the one or more processors of the image transmitter cause the imager to perform new imaging every time the imaging synchronization signal is generated and cause communication data corresponding to captured image data output from the imager to be transmitted from the communicator of the image transmitter to the image receiver by radio waves, wherein the synchronization signal generation function of the image receiver is configured to generate a display synchronization signal, wherein the one or more processors of the image receiver is configured to generate a display image corresponding to the captured image data from the communication data received by radio waves in the communicator of the image receiver and cause the monitor to display a newly generated display image every time the display synchronization signal is generated, wherein the processor of one of the image transmitter and the image receiver causes specific communication data predetermined between the image transmitter and the image receiver to be transmitted from one of the communicator to the other communicator by radio waves after the display synchronization signal is generated every time the imaging synchronization signal or the display synchronization signal is generated in the synchronization signal generation function of the one communicator, wherein the processor of one of the image transmitter and the image receiver is configured to calculate a synchronization deviation time from a generation time-point of the imaging synchronization signal or the display synchronization signal to a reception time-point of the specific communication data for the communicator of the image transmitter or the image receiver with respect to each of the imaging synchronization signal or the display synchronization signal generated in the synchronization signal generation function of the image transmitter or the image receiver, wherein the processor of one of the image transmitter and the image receiver is configured to extract two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated, wherein the processor of one of the image transmitter and the image receiver is configured to calculate an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal generated in the synchronization signal generation function of the one communicator or the other communicator on the basis of a generation time interval of the imaging synchronization signal or the display synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data, and wherein the processor of one of the image transmitter and the image receiver causes a communication packet for adjusting a cycle of the imaging synchronization signal or the display synchronization signal of the one communicator or adjusting a cycle of the imaging synchronization signal or the display synchronization signal of the other communicator on the basis of the adjustment value to be transmitted from the communicator of the one communicator to the other communicator by radio waves.
This invention relates to an image transfer system for wirelessly transmitting and displaying images between a transmitter and a receiver. The system addresses synchronization issues that can arise during wireless image transmission, ensuring that captured images are displayed in real-time without delays or misalignment. The image transmitter includes a camera, a wireless communicator, and a processor that generates an imaging synchronization signal to trigger image capture. The captured image data is converted into communication data and transmitted wirelessly to the receiver. The receiver, equipped with a display, a wireless communicator, and a processor, generates a display synchronization signal to update the displayed image. Both devices exchange specific synchronization data to measure timing deviations between image capture and display. To maintain synchronization, the system calculates the time difference (synchronization deviation) between when synchronization signals are generated and when corresponding data is received. It then selects two synchronization data points to determine an adjustment value for the imaging or display cycle. This adjustment is transmitted wirelessly to either the transmitter or receiver to fine-tune their synchronization signals, ensuring consistent real-time image transfer. The system dynamically compensates for network delays or processing variations, improving reliability in wireless image streaming applications.
2. The image transfer system according to claim 1 , wherein the processor which extracting the two pieces of the specific communication data is configured to extract the specific communication data with a minimum synchronization deviation time as one of the two pieces of the specific communication data.
This invention relates to an image transfer system designed to improve synchronization and data integrity in communication networks, particularly where data packets may be lost or delayed. The system addresses the problem of ensuring reliable image transmission by extracting and comparing two pieces of specific communication data, such as image data packets, to minimize synchronization errors. The processor in the system is configured to select one of the two data pieces with the smallest synchronization deviation time, ensuring the most accurate and timely reconstruction of the transmitted image. This approach helps mitigate issues caused by network latency or packet loss, enhancing the overall quality and reliability of image transfer. The system likely includes components for receiving, processing, and comparing data packets, along with mechanisms to determine synchronization deviations and select the optimal data for reconstruction. The invention is particularly useful in applications requiring high-fidelity image transmission, such as medical imaging, remote monitoring, or real-time video streaming.
3. The image transfer system according to claim 2 , wherein the processor which extracting the two pieces of the specific communication data is configured to extract the specific communication data having a minimum value obtained by dividing a difference between the synchronization deviation times by a frame interval in a relationship with the one extracted piece of the specific communication data as the other of the two extracted pieces of the specific communication data.
This invention relates to an image transfer system designed to improve synchronization in communication networks, particularly where timing deviations between devices can disrupt data transmission. The system addresses the problem of synchronization errors that occur when transmitting image data or other time-sensitive information across networks, leading to misalignment or corruption of the transmitted data. The system includes a processor that extracts two pieces of specific communication data from a data stream. The processor identifies these pieces based on a calculated minimum value derived from the synchronization deviation times divided by a frame interval. This ensures that the extracted data pieces are optimally aligned in time, minimizing synchronization errors. The processor then uses one of the extracted data pieces to determine the other, ensuring consistent timing relationships between the data segments. The system is particularly useful in applications requiring precise timing, such as video streaming, real-time communication, or industrial automation, where synchronization deviations can cause significant performance issues. By dynamically adjusting the extraction of communication data based on synchronization metrics, the system enhances reliability and accuracy in data transfer. The invention improves upon existing methods by providing a more robust and adaptive approach to handling synchronization deviations in networked environments.
4. The image transfer system according to claim 1 , wherein the specific communication data is one piece of communication data which satisfies a predetermined criterion in communication data corresponding to the captured image data constituting one frame, wherein the processor of the image transmitter causes the specific communication data to be transmitted from the communicator of the image transmitter to the image receiver, and wherein the processor of the image receiver is configured to calculate the synchronization deviation time.
This invention relates to an image transfer system for synchronizing communication data with captured image data in real-time applications. The system addresses the challenge of maintaining precise synchronization between transmitted image frames and associated communication data, which is critical in applications like live broadcasting, remote monitoring, or augmented reality where timing discrepancies can degrade performance. The system includes an image transmitter and an image receiver. The image transmitter captures image data as a sequence of frames and generates communication data corresponding to each frame. The processor in the transmitter identifies specific communication data from each frame that meets a predetermined criterion, such as relevance, priority, or timing constraints. This specific data is then transmitted to the image receiver. The receiver's processor calculates the synchronization deviation time, which represents the delay or misalignment between the received communication data and the corresponding image frame. This calculation allows the system to adjust transmission timing or processing delays to maintain synchronization. The system ensures that critical communication data is accurately aligned with the visual content, improving the reliability of real-time applications where timing accuracy is essential. The synchronization deviation time calculation enables dynamic adjustments to compensate for network latency or processing delays, enhancing overall system performance.
5. The image transfer system according to claim 1 , wherein the specific communication data is communication data to be transmitted at a timing when the display synchronization signal has been generated, wherein the processor of the image receiver causes the specific communication data to be transmitted from the communicator of the image receiver to the image transmitter, and wherein the processor of the image transmitter is configured to calculate the synchronization deviation time.
This invention relates to an image transfer system that synchronizes communication between an image transmitter and an image receiver to reduce latency and improve display timing accuracy. The system addresses the problem of synchronization errors in image transmission, where delays or mismatches between transmitted and received signals can cause visual artifacts or timing inconsistencies. The system includes an image transmitter and an image receiver, each with a processor and a communicator for data exchange. The image transmitter generates a display synchronization signal to coordinate image display timing. The image receiver detects this signal and transmits specific communication data back to the image transmitter at the exact moment the synchronization signal is generated. This data exchange allows the image transmitter to calculate a synchronization deviation time, representing the delay between the intended and actual transmission timing. By analyzing this deviation, the system can adjust transmission parameters to minimize latency and ensure precise synchronization between the transmitter and receiver. The invention improves real-time image transfer applications, such as video streaming or gaming, where timing accuracy is critical.
6. The image transfer system according to claim 1 , wherein the processor which calculates the adjustment value is configured to calculate the adjustment value of the cycle on the basis of a value obtained by dividing the difference between the synchronization deviation times of the extracted two pieces of the specific communication data by a frame interval of the captured image data corresponding to the specific communication data.
The image transfer system is designed to improve synchronization in image data transmission, particularly in applications where precise timing is critical, such as video streaming or real-time imaging. The system addresses the problem of synchronization deviations that occur when transmitting image data, which can lead to misalignment or delays in the received data. To solve this, the system includes a processor that calculates an adjustment value for synchronization correction. The processor extracts two pieces of specific communication data from the transmitted image data and determines the synchronization deviation times for each. The adjustment value is then calculated by dividing the difference between these synchronization deviation times by the frame interval of the captured image data corresponding to the specific communication data. This adjustment value is used to correct timing discrepancies, ensuring that the transmitted image data remains synchronized with the intended playback or processing timeline. The system may also include a communication interface for transmitting the image data and a memory for storing the captured image data and synchronization information. The overall goal is to minimize synchronization errors, improving the accuracy and reliability of image data transmission in real-time applications.
7. The image transfer system according to claim 6 , wherein the processor which calculates the adjustment value of the cycle is configured to calculate an adjustment value of a phase on the basis of the synchronization deviation time of each of the two extracted pieces of the specific communication data and frame intervals of the two extracted pieces of the specific communication data.
This invention relates to an image transfer system designed to improve synchronization in data communication, particularly for systems transmitting image data. The problem addressed is maintaining precise timing alignment between transmitted and received data frames, which is critical for real-time applications like video streaming or industrial imaging. Synchronization deviations can lead to errors, delays, or degraded performance. The system includes a processor that calculates an adjustment value for the communication cycle based on synchronization deviations detected in specific communication data. The processor extracts two pieces of this data, measures the time deviation between them, and uses the frame intervals of these pieces to determine a phase adjustment value. This adjustment compensates for timing discrepancies, ensuring that subsequent data frames are transmitted and received in proper synchronization. The system may also include a transmitter and receiver to handle the data transfer, with the processor dynamically adjusting the cycle timing to maintain alignment. The invention is particularly useful in environments where precise timing is essential, such as medical imaging, surveillance, or high-speed industrial automation. By dynamically adjusting the phase based on measured deviations and frame intervals, the system minimizes synchronization errors, improving data integrity and system reliability. The processor's calculations ensure that adjustments are made in real-time, adapting to varying network conditions or processing delays.
8. The image transfer system according to claim 7 , wherein the processor which calculates the adjustment value of the cycle is configured to calculate the adjustment value of the phase on the basis of a result of multiplying by a weight value based on a frame interval of the captured image data corresponding to the specific communication data at a reception time-point of each of the two extracted pieces of the specific communication data and the frame intervals of the two extracted pieces of the specific communication data, and set a value greater than the weight value by which a larger synchronization deviation time of the synchronization deviation times of reception time-points of the two pieces of the specific communication data is multiplied as the weight value by which a smaller synchronization deviation time thereof is multiplied.
This invention relates to an image transfer system designed to improve synchronization in communication data transmission, particularly for systems where timing deviations between transmitted and received data can degrade performance. The system addresses the problem of synchronization errors that occur when communication data, such as image frames, are received at different intervals, leading to misalignment and potential data loss or corruption. The system includes a processor that calculates an adjustment value for the phase of the received data based on synchronization deviation times between two extracted pieces of specific communication data. The processor multiplies these deviations by weight values derived from the frame intervals of the captured image data corresponding to the communication data at their reception times. The weight values are dynamically adjusted such that the larger synchronization deviation time is assigned a higher weight, while the smaller deviation time is assigned a lower weight. This ensures that the phase adjustment is more heavily influenced by the larger deviation, improving synchronization accuracy. The system also includes a phase adjustment unit that adjusts the phase of the received data based on the calculated adjustment value, ensuring that the data is properly aligned for further processing. This approach enhances the reliability and quality of data transmission in systems where precise timing is critical, such as in video streaming or real-time imaging applications.
9. An image receiver for receiving communication data corresponding to captured image data output after imaging is newly performed every time an imaging synchronization signal is generated from an image transmitter by radio waves and displaying a display image corresponding to the captured image data, wherein the image receiver comprising a communicator, a monitor, a synchronization signal generation function, and one or more processors, wherein the synchronization signal generation function is configured to generate a display synchronization signal, and generate a display image corresponding to the captured image data from the communication data received by radio waves in the communicator, and cause the monitor to display a newly generated display image every time the display synchronization signal is generated, wherein, when one piece of communication data satisfying a predetermined criterion among pieces of communication data corresponding to the captured image data is defined as specific communication data, the one or more processors are configured to calculate a synchronization deviation time from a generation time-point of the display synchronization signal to a reception time-point of the specific communication data for the communicator with respect to each of the display synchronization signal generated in the synchronization signal generation function, extract two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated, calculate an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the display synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data, and cause a communication packet for adjusting the cycle of the display synchronization signal or adjusting the cycle of the imaging synchronization signal to be transmitted from the communicator to the image transmitter by radio waves on the basis of the adjustment value.
This invention relates to a wireless image transmission system where an image transmitter captures images and sends corresponding communication data to an image receiver, which displays the images in synchronization with an imaging synchronization signal. The system addresses timing mismatches between image capture and display, ensuring smooth and synchronized playback. The image receiver includes a communicator for wirelessly receiving communication data, a monitor for displaying images, a synchronization signal generation function to produce a display synchronization signal, and one or more processors. The receiver generates display images from received communication data and updates the monitor with new images each time a display synchronization signal is generated. To correct synchronization errors, the system identifies specific communication data meeting a predetermined criterion and calculates the synchronization deviation time between the display synchronization signal generation and the reception of this data. It then selects two pieces of specific communication data (excluding the one with the maximum deviation) and computes an adjustment value for the cycle of either the imaging or display synchronization signal. This adjustment is based on the time interval between the two selected data points and the difference in their synchronization deviation times. The receiver transmits a communication packet with this adjustment value to the image transmitter, allowing dynamic correction of synchronization timing. This ensures consistent alignment between captured and displayed images.
10. An image transmitter for transmitting communication data corresponding to a display image to an image receiver configured to display the display image newly generated every time a display synchronization signal is generated by radio waves, wherein the image transmitter comprising a communicator, an imager, a synchronization signal generation function, and one or more processors, wherein the synchronization signal generation function is configured to generate an imaging synchronization signal, wherein the one or more processors cause the imager to perform new imaging every time the imaging synchronization signal is generated and cause communication data corresponding to captured image data output from the imager to be transmitted from the communicator to the image receiver by radio waves, and wherein, when communication data to be transmitted is defined as specific communication data at a timing when the display synchronization signal is generated by the image receiver, the one or more processors are configured to calculate a synchronization deviation time from a generation time-point of the imaging synchronization signal to a reception time-point of the specific communication data for the communicator with respect to each of the imaging synchronization signal generated in the synchronization signal generation function, extract two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated, calculate an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the imaging synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data, and cause a communication packet for adjusting the cycle of the imaging synchronization signal or adjusting the cycle of the display synchronization signal to be transmitted from the communicator to the image receiver by radio waves on the basis of the adjustment value.
This invention relates to wireless image transmission systems where an image transmitter sends communication data corresponding to a display image to an image receiver, which displays newly generated images synchronized with a display synchronization signal. The system includes an imager, a communicator, a synchronization signal generator, and processors. The imager captures new images each time an imaging synchronization signal is generated, and the communicator transmits the corresponding communication data wirelessly to the receiver. The processors monitor synchronization deviations by calculating the time difference between the imaging synchronization signal generation and the reception of specific communication data at the receiver. To minimize deviations, the system extracts two pieces of specific communication data with the smallest synchronization deviations, calculates an adjustment value for the cycle of either the imaging or display synchronization signal based on the time intervals and deviation differences of these two data points, and transmits an adjustment packet to the receiver to correct synchronization. This ensures precise alignment between image capture and display timing, improving real-time performance in wireless image transmission systems.
11. An image transfer method for use in an image transfer system having an image transmitter and an image receiver, the image transfer method comprising: generating, by a synchronization signal generation function of the image transmitter, an imaging synchronization signal; causing, by one or more processors of the image transmitter, an imager of the image transmitter to perform new imaging every time the imaging synchronization signal is generated and causing communication data corresponding to captured image data output from the imager to be transmitted from a communicator of the image transmitter to the image receiver by radio waves; generating, by a synchronization signal generation function of the image receiver, a display synchronization signal; generating, by one or more processors of the image receiver, a display image corresponding to the captured image data from the communication data received by radio waves in a communicator of the image receiver and causing a monitor of the image receiver to display a newly generated display image every time the display synchronization signal is generated; causing, by the processor of one of the image transmitter and the image receiver, specific communication data predetermined between the image transmitter and the image receiver to be transmitted from one of the communicator to the other communicator by radio waves after the display synchronization signal is generated every time the imaging synchronization signal or the display synchronization signal is generated in the synchronization signal generation function of the one communicator; calculating, by the processor of one of the image transmitter and the image receiver, a synchronization deviation time from a generation time-point of the imaging synchronization signal or the display synchronization signal to a reception time-point of the specific communication data for the communicator of the image transmitter or the image receiver with respect to each of the imaging synchronization signal or the display synchronization signal generated in the synchronization signal generation function of the image transmitter or the image receiver; extracting, by the processor of one of the image transmitter and the image receiver, two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated; calculating, by the processor of one of the image transmitter and the image receiver, an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal generated in the synchronization signal generation function of the one communicator or the other communicator on the basis of a generation time interval of the imaging synchronization signal or the display synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data; and causing, by the processor of one of the image transmitter and the image receiver, a communication packet for adjusting a cycle of the imaging synchronization signal or the display synchronization signal of the one communicator or adjusting a cycle of the imaging synchronization signal or the display synchronization signal of the other communicator on the basis of the adjustment value to be transmitted from the communicator of the one communicator to the other communicator by radio waves.
Image transfer systems. This invention relates to methods for transferring images, particularly for improving synchronization between image capture and display in a system comprising an image transmitter and an image receiver. The method involves generating imaging synchronization signals at the transmitter and display synchronization signals at the receiver. The transmitter captures new images every time its synchronization signal is generated and transmits corresponding communication data via radio waves. The receiver generates display synchronization signals and uses received communication data to generate and display images on its monitor each time its synchronization signal is generated. A key aspect is the transmission of specific, predetermined communication data between the transmitter and receiver after each synchronization signal generation. This specific data is used to calculate synchronization deviation times, measuring the interval between a synchronization signal's generation and the reception of this specific data. The method then identifies two pieces of this specific communication data, excluding any data with the maximum deviation time. Based on the generation time interval of these two selected data pieces and the difference in their synchronization deviation times, an adjustment value for the imaging or display synchronization signal cycle is calculated. Finally, a communication packet is transmitted to adjust the synchronization signal cycle of either the transmitter or receiver based on this calculated adjustment value. This aims to refine the timing accuracy between image capture and display.
12. An image reception method for use in an image receiver for receiving communication data corresponding to captured image data output after imaging is newly performed every time an imaging synchronization signal is generated from an image transmitter by radio waves and displaying a display image corresponding to the captured image data, the image reception method comprising: generating, by a synchronization signal generation function, a display synchronization signal; generating, by the synchronization signal generation function, a display image corresponding to the captured image data from the communication data received by radio waves in a communicator, and causing a monitor to display a newly generated display image every time the display synchronization signal is generated; calculating, by the one or more processors, a synchronization deviation time from a generation time-point of the display synchronization signal to a reception time-point of the specific communication data for the communicator with respect to each of the display synchronization signal generated in the synchronization signal generation function, when one piece of communication data satisfying a predetermined criterion among pieces of communication data corresponding to the captured image data is defined as specific communication data; extracting, by the one or more processors, two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated; calculating, by the one or more processors, an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the display synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data; and causing, by the one or more processors, a communication packet for adjusting the cycle of the display synchronization signal or adjusting the cycle of the imaging synchronization signal to be transmitted from the communicator to the image transmitter by radio waves on the basis of the adjustment value.
This invention relates to a method for synchronizing image transmission and reception in a wireless imaging system. The problem addressed is maintaining synchronization between an image transmitter and receiver when captured image data is transmitted wirelessly, ensuring smooth display without lag or distortion. The method involves generating a display synchronization signal to update the displayed image whenever new captured image data is received. A synchronization deviation time is calculated between the display synchronization signal and the reception time of specific communication data (selected based on a predetermined criterion). To adjust synchronization, two pieces of specific communication data with the smallest synchronization deviation times are extracted, and an adjustment value is calculated based on their generation time intervals and deviation differences. This adjustment value is used to modify the cycle of either the imaging synchronization signal (transmitter-side) or the display synchronization signal (receiver-side) via a wireless communication packet. The goal is to dynamically correct timing discrepancies, ensuring real-time alignment between captured and displayed images. The method is implemented using processors and a communicator for wireless data exchange.
13. A non-transitory computer readable medium having stored thereon a program for causing a computer to execute an image reception method for use in an image receiver for receiving communication data corresponding to captured image data output after imaging is newly performed every time an imaging synchronization signal is generated from an image transmitter by radio waves and displaying a display image corresponding to the captured image data, the program comprising: generating, by a synchronization signal generation function, a display synchronization signal; generating, by the synchronization signal generation function, a display image corresponding to the captured image data from the communication data received by radio waves in a communicator, and causing a monitor to display a newly generated display image every time the display synchronization signal is generated; calculating, by the one or more processors, a synchronization deviation time from a generation time-point of the display synchronization signal to a reception time-point of the specific communication data for the communicator with respect to each of the display synchronization signal generated in the synchronization signal generation function, when one piece of communication data satisfying a predetermined criterion among pieces of communication data corresponding to the captured image data is defined as specific communication data; extracting, by the one or more processors, two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated; calculating, by the one or more processors, an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the display synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data; and causing, by the one or more processors, a communication packet for adjusting the cycle of the display synchronization signal or adjusting the cycle of the imaging synchronization signal to be transmitted from the communicator to the image transmitter by radio waves on the basis of the adjustment value.
This invention relates to a system for synchronizing image transmission and reception between an image transmitter and an image receiver using radio waves. The problem addressed is maintaining precise synchronization between captured image data and its display, especially when communication delays or timing discrepancies occur. The system generates a display synchronization signal to update the displayed image whenever new communication data is received. It calculates synchronization deviation times between the display synchronization signal and the reception of specific communication data, identifying the most stable data points to minimize timing errors. By analyzing the deviation times of two selected data points, the system computes an adjustment value to fine-tune the cycle of either the imaging synchronization signal (transmitter-side) or the display synchronization signal (receiver-side). This adjustment is transmitted back to the transmitter via radio waves to correct synchronization drift. The goal is to ensure real-time, seamless display of captured images without lag or misalignment. The invention is implemented via a computer program stored on a non-transitory medium, executing functions for synchronization signal generation, deviation time calculation, adjustment value derivation, and communication packet transmission.
14. An image transmission method for use in an image transmitter for transmitting communication data corresponding to a display image to an image receiver configured to display the display image newly generated every time a display synchronization signal is generated by radio waves, the image transmission method comprising: generating, by a synchronization signal generation function, an imaging synchronization signal; causing, by one or more processors, an imager to perform new imaging every time the imaging synchronization signal is generated and causing communication data corresponding to captured image data output from the imager to be transmitted from a communicator to the image receiver by radio waves; calculating, by the one or more processors, a synchronization deviation time from a generation time-point of the imaging synchronization signal to a reception time-point of the specific communication data for the communicator of the image receiver with respect to each of the imaging synchronization signal generated in the synchronization signal generation function, when communication data to be transmitted is defined as specific communication data at a timing when the display synchronization signal is generated by the image receiver; extracting, by the one or more processors, two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated; calculating, by the one or more processors, an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the imaging synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data, and causing, by the one or more processors, a communication packet for adjusting a cycle of the imaging synchronization signal or adjusting a cycle of the display synchronization signal to be transmitted from the communicator to the image receiver by radio waves on the basis of the adjustment value.
This invention relates to wireless image transmission systems where an image transmitter sends communication data corresponding to a display image to an image receiver, which displays newly generated images synchronized with a display synchronization signal. The problem addressed is maintaining synchronization between the transmitter's imaging process and the receiver's display process, especially when radio wave transmission introduces delays or jitter. The method involves generating an imaging synchronization signal to trigger new imaging by an imager. Captured image data is converted into communication data and transmitted wirelessly to the image receiver. The system calculates a synchronization deviation time for each imaging synchronization signal, representing the delay between signal generation and when the corresponding communication data is received by the receiver. To compensate for synchronization errors, the method identifies two pieces of specific communication data (excluding the one with the maximum deviation) and calculates an adjustment value for the cycle of either the imaging synchronization signal or the display synchronization signal. This adjustment is based on the time interval between the two selected signals and the difference in their synchronization deviation times. A communication packet containing the adjustment value is then transmitted to the receiver to dynamically correct synchronization. This ensures that the displayed images remain aligned with the captured images despite transmission delays.
15. A non-transitory computer readable medium having stored thereon a program for causing a computer to execute an image transmission method for use in an image transmitter for transmitting communication data corresponding to a display image to an image receiver configured to display the display image newly generated every time a display synchronization signal is generated by radio waves, the program comprising: generating, by a synchronization signal generation function, an imaging synchronization signal; causing, by one or more processors, an imager to perform new imaging every time the imaging synchronization signal is generated and causing communication data corresponding to captured image data output from the imager to be transmitted from a communicator to the image receiver by radio waves; calculating, by the one or more processors, a synchronization deviation time from a generation time-point of the imaging synchronization signal to a reception time-point of the specific communication data for the communicator of the image receiver with respect to each of the imaging synchronization signal generated in the synchronization signal generation function, when communication data to be transmitted is defined as specific communication data at a timing when the display synchronization signal is generated by the image receiver; extracting, by the one or more processors, two pieces of the specific communication data from the specific communication data other than the specific communication data with a maximum synchronization deviation time, among a plurality of pieces of the specific communication data for which the synchronization deviation time is calculated; calculating, by the one or more processors, an adjustment value of a cycle of the imaging synchronization signal or the display synchronization signal on the basis of a generation time interval of the imaging synchronization signal of the two extracted pieces of the specific communication data and a difference between synchronization deviation times corresponding to the two extracted pieces of the specific communication data, and causing, by the one or more processors, a communication packet for adjusting a cycle of the imaging synchronization signal or adjusting a cycle of the display synchronization signal to be transmitted from the communicator to the image receiver by radio waves on the basis of the adjustment value.
This invention relates to wireless image transmission systems where an image transmitter sends communication data corresponding to a display image to an image receiver, which displays newly generated images synchronized with a display synchronization signal. The system addresses synchronization issues between the transmitter's imaging process and the receiver's display process, which can cause misalignment or delays in image rendering. The transmitter includes a synchronization signal generation function that produces an imaging synchronization signal to trigger new imaging by an imager. The captured image data is converted into communication data and transmitted wirelessly to the image receiver. The system calculates a synchronization deviation time for each imaging synchronization signal, representing the delay between signal generation and when the corresponding communication data is received by the receiver. To refine synchronization, the system identifies two pieces of specific communication data (excluding the one with the maximum deviation) and uses their generation time intervals and deviation time differences to compute an adjustment value. This value adjusts the cycle of either the imaging synchronization signal or the display synchronization signal. A communication packet containing the adjustment value is then transmitted to the receiver to correct synchronization. This method ensures precise alignment between imaging and display processes, minimizing latency and improving real-time image transmission performance.
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January 21, 2020
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